diff --git a/Iceshrimp.Backend/Core/Services/ImageProcessor.cs b/Iceshrimp.Backend/Core/Services/ImageProcessor.cs
index c1570784..657ce94d 100644
--- a/Iceshrimp.Backend/Core/Services/ImageProcessor.cs
+++ b/Iceshrimp.Backend/Core/Services/ImageProcessor.cs
@@ -93,6 +93,8 @@ public class ImageProcessor
 			// Correct mime type
 			if (request.MimeType == "image" && ident.Metadata.DecodedImageFormat?.DefaultMimeType != null)
 				request.MimeType = ident.Metadata.DecodedImageFormat.DefaultMimeType;
+			if (ident.Metadata.TryGetPngMetadata(out var pngMetadata) && pngMetadata.AnimateRootFrame)
+				request.MimeType = "image/apng";
 
 			if (_config.CurrentValue.MediaProcessing.ImageProcessor == Enums.ImageProcessor.None)
 			{
@@ -101,7 +103,7 @@ public class ImageProcessor
 			}
 
 			// Don't generate thumb/webp for animated images
-			if (ident.FrameMetadataCollection.Count != 0)
+			if (ident.FrameMetadataCollection.Count != 0 || pngMetadata?.AnimateRootFrame == true)
 			{
 				genThumb = false;
 				genWebp  = false;